Antenna



FIG. 1 is a front elevational view of an antenna showing my new design,the rear elevational, right side elevational, and left side elevationalviews being identical thereto;

FIG. 2 is a front, top perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front, top perspective view thereof; and,

FIG. 6 is a bottom, rear perspective view thereof.

CLAIM The ornamental design for an antenna, as shown and described.